My problem is, there are a few templates on a component. And I want to call on same component. For example:
<template>
<div>
[I WANT TO USE FIRST TEMPLATE]
</div>
<template>First</template> //First Template
<template>Second</template> //Second Template
</template>
Ihsan Fajar Ramadhan's answer is one way of doing it. But, there is another better way of conditional rendering of components like below:
<template>
<div>
<button v-on:click="setSelected('comp1')">Comp1</button>
<button v-on:click="setSelected('comp2')">Comp2</button>
<component :is="selected"></component>
</div>
</template>
<script>
import comp1 from './comp1.vue';
import comp2 from './comp2.vue';
export default {
components : {
'comp1' : comp1,
'comp2' : comp2
},
data(){
return {
selected : 'comp1'
},
methods: {
setSelected(tab){
this.selected = tab;
}
}
}
</script>
if you want to render them conditionally, you can use v-if directive. for the example:
<template>
<div>
[I WANT TO USE FIRST TEMPLATE]
</div>
<template v-if="fistCondition">First</template> //First Template
<template v-else>Second</template> //Second Template
</template>
or
<template>
<div>
[I WANT TO USE FIRST TEMPLATE]
</div>
<template v-if="fistCondition">First</template> //First Template
<template v-else-if="secondCondition">Second</template> //Second Template
</template>
Related
I am new to vueJS.
What I want to do is passing parameters to a component, depending on the selection of the routes. Here is my App.vue:
<template>
<div id="main">
<header>
<h1 style="color:red">{{msg}}</h1>
</header>
<div>
<aside class="sidebar">
<router-link v-for="el in this.$router.options.routes" :to="el">
{{el.name}}
</router-link>
</aside>
<SubMenu></SubMenu>
<div class="content">
<router-view></router-view>
</div>
</div>
</div>
</template>
<script>
import SubMenu from './components/SubMenu.vue'
export default {
components: {
'SubMenu': SubMenu
},
data() {
return {
msg: 'Welcome to Your Vue.js App' }
}
}
</script>
<style>
#import 'style.css';
#import 'grid.css';
</style>
and the SubMenu component I would like to make dynamic:
<template>
<div>
something dynamic
</div>
</template>
How can I pass some parameters to use in the component?
thank you
Your App.vue can be like this:
<template>
<div id="main">
<header>
<h1 style="color:red">{{msg}}</h1>
</header>
<div>
<aside class="sidebar">
<router-link v-for="el in this.$router.options.routes" :to="el">
{{el.name}}
</router-link>
</aside>
<SubMenu :menuTitle="subMenuTitle"></SubMenu>
<div class="content">
<router-view></router-view>
</div>
</div>
</div>
</template>
<script>
import SubMenu from './components/SubMenu.vue';
export default {
components: {
SubMenu
},
data() {
return {
subMenuTitle: "This is the sub menu",
msg: 'Welcome to Your Vue.js App'
}
}
}
</script>
<style>
#import 'style.css';
#import 'grid.css';
</style>
The SubMenu.vue component could be like this:
<template>
<div>
<h2>{{ menuTitle }}</h2>
something dynamic
</div>
</template>
<script>
export default {
name: "SubMenu",
props: {
menuTitle: String,
}
}
</script>
In the SubMenu component that was used in App.vue, notice the colon that appears before the menuTitle attribute. When you do that before an attribute, the value of that attribute would be evaluated by Vue and passed to the component. You can pass literal Javascript expressions or items in your App.vue component.
In the SubMenu component, you can use the props in whatever way you can. If the prop's value is an array, you can use the v-for directive with it to create a list of items in the SubMenu.
Welcome to SO,
In Vue.js passing parameters to components is called "Props"
You can pass props to your SubMenu like below
<SubMenu :id="12345" someText="Some Text About Something" :dataArray="[1,2,3,4,5]" />
then inside your SubMenu component you can define Prop Types as below
props: ['dataArray']
or
props: {
dataArray: {
type: Array,
default: []
}
}
After that you can use the data you passed to your liking
You can also read up on this Vue Documentation regarding the Props, which has much more detailed explanations about various Props related stuff and sample code
Ok many thanks to both.
But what if I would like to pass something that depends on the voices in router-link? I mean, router-link prints a menu with 4 voices...what if I would like a behavior like this:
click on voice1 in router-link ---> pass this object ['input1', 'input2'] to SubMenu
click on voice2 in router-link ---> pass this other object ['input3', 'input4', 'input5'] to SubMenu
and so on.
thanks again :)
I do have the following code:
<template>
<custom-child></custom-child>
</template>
export default class Custom extends Vue {
mounted() {
console.log(this.$el); // Returns a text node (with an empty content)
console.log(this.$el.nextElementSibling); // Returns a element representing my custom child
}
}
I am quite confused why would I need to use nextElementSibling as I expected $el to return an element directly.
The solution is as follows.
wrong
<template>
<div></div>
<div>
...
</div>
</template>
correct
<template>
<div>
<div>...</div>
...
</div>
</template>
OR
wrong
<template>
<div></div>
<div>
...
</div>
</template>
correct
<template>
<div>
<div>...</div>
</router-view>
</div>
</template>
If you do not use a "div" tag just inside the "Template" tag, you will get the same problem.
Is it possible?
I have something like this:
<template>
<my-layout>
<template #header>
Some header html goes here
</template>
Body html here
</my-layout>
</template>
<script>
import MyLayout from './MyLayout.vue'
export default {
layout: MyLayout,
components: {
//MyLayout
}
}
</script>
And template like that
<template>
<div>
<slot name="header"/>
</div>
<slot/>
</template>
The default slot works, but "header" slot doesn't display itself (unless using MyLayout as standard component).
I believe there is a problem with the closing tags on the template you have given and it should be like the following:
<template>
<div>
<slot name="header"> </slot>
</div>
</template>
After that, layout property only excepts strings or functions that return strings, so parent should be like the following:
<template>
<my-layout>
<template #header>
Some header html goes here
</template>
Body html here
</my-layout>
</template>
<script>
import MyLayout from "./MyLayout.vue";
export default {
layout: "MyLayout",
components: {
//MyLayout
}
};
</script>
I hope this solves your problem and have a nice day :)
I'm a beginner in web development and I'm trying to help out friends restarting an old game. I'm in charge of the tooltip component but I hit a wall...
There are many Vue components and in a lot of them I want to call a child component named Tooltip, I'm using vue-tippy for easy configuration. This is the component:
<template>
<tippy class="tippy-tooltip">
<slot name='tooltip-trigger'></slot>
<template #content>
<slot name='tooltip-content'>
</slot>
</template>
</tippy>
</template>
<script>
import { formatText } from "#/utils/formatText";
export default {
name: "Tooltip",
methods:{
formatContent(value) {
if (! value) return '';
return formatText(value.toString());
}
},
}
</script>
In one of the other components I try to use the tooltip:
<template>
<a class="action-button" href="#">
<Tooltip>
<template #tooltip-trigger>
<span v-if="action.movementPointCost > 0">{{ action.movementPointCost }}<img src="#/assets/images/pm.png" alt="mp"></span>
<span v-else-if="action.actionPointCost > 0">{{ action.actionPointCost }}<img src="#/assets/images/pa.png" alt="ap"></span>
<span v-if="action.canExecute">{{ action.name }}</span>
<span v-else><s>{{ action.name }}</s></span>
<span v-if="action.successRate < 100" class="success-rate"> ({{ action.successRate }}%)</span>
</template>
<template #tooltip-content>
<h1>{{action.name}}</h1>
<p>{{action.description}}</p>
</template>
</Tooltip>
</a>
</template>
<script>
import Tooltip from "#/components/Utils/ToolTip";
export default {
props: {
action: Object
},
components: {Tooltip}
};
</script>
From here everything is fine, the tooltip is correctly displayed with the proper content.
The thing is, the text in the {{ named.description }} needs to be formatted with the formatContent content. I know I can use the props, the components would look like that:
Tooltip.vue:
<template>
<tippy class="tippy-tooltip">
<slot name='tooltip-trigger'></slot>
<template #content>
<h1 v-html="formatContent(title)" />
<p v-html="formatContent(content)"/>
</template>
</tippy>
</template>
<script>
import { formatText } from "#/utils/formatText";
export default {
name: "Tooltip",
methods:{
formatContent(value) {
if (! value) return '';
return formatText(value.toString());
}
},
props: {
title: {
type: String,
required: true
},
content: {
type: Array,
required: true
}
}
}
</script>
Parent.vue:
<template>
<a class="action-button" href="#">
<Tooltip :title="action.name" :content="action.description">
<template v-slot:tooltip-trigger>
<span v-if="action.movementPointCost > 0">{{ action.movementPointCost }}<img src="#/assets/images/pm.png" alt="mp"></span>
<span v-else-if="action.actionPointCost > 0">{{ action.actionPointCost }}<img src="#/assets/images/pa.png" alt="ap"></span>
<span v-if="action.canExecute">{{ action.name }}</span>
<span v-else><s>{{ action.name }}</s></span>
<span v-if="action.successRate < 100" class="success-rate"> ({{ action.successRate }}%)</span>
</template>
</Tooltip>
</a>
</template>
<script>
import Tooltip from "#/components/Utils/ToolTip";
export default {
props: {
action: Object
},
components: {Tooltip}
};
</script>
But I need to use a slot in the tooltip component because we'll have some "extensive" lists with v-for.
Is there a way to pass the data from a slot into a JS function?
If I understand you correctly, you're looking for scoped slots here.
These will allow you to pass information (including methods) from child components (the components with <slot> elements) back to the parents (the component(s) filling those slots), allowing parents to use chosen information directly in the slotted-in content.
In this case, we can give parents access to formatContent(), which will allow them to pass in content that uses it directly. This allows us to keep the flexibility of slots, with the data passing of props.
To add this to your example, we add some "scope" to your content slot in Tooltip.vue. This just means we one or more attributes to your <slot> element, in this case, formatContent:
<!-- Tooltip.vue -->
<template>
<tippy class="tippy-tooltip">
<slot name='tooltip-trigger'></slot>
<template #content>
<!-- Attributes we add or bind to this slot (eg. formatContent) -->
<!-- become available to components using the slot -->
<slot name='tooltip-content' :formatContent="formatContent"></slot>
</template>
</tippy>
</template>
<script>
import { formatText } from "#/utils/formatText";
export default {
name: "Tooltip",
methods: {
formatContent(value) {
// Rewrote as a ternary, but keep what you're comfortable with
return !value ? '' : formatText(value.toString());
}
},
}
</script>
Now that we've added some scope to the slot, parents filling the slot with content can use it by invoking a slot's "scope":
<!-- Parent.vue -->
<template>
<a class="action-button" href="#">
<Tooltip>
. . .
<template #tooltip-content="{ formatContent }">
<!-- Elements in this slot now have access to 'formatContent' -->
<h1>{{ formatContent(action.name) }}</h1>
<p>{{ formatContent(action.description) }}</p>
</template>
</Tooltip>
</a>
</template>
. . .
Sidenote: I prefer to use the destructured syntax for slot scope, because I feel it's clearer, and you only have to expose what you're actually using:
<template #tooltip-content="{ formatContent }">
But you can also use a variable name here if your prefer, which will become an object which has all your slot content as properties. Eg.:
<template #tooltip-content="slotProps">
<!-- 'formatContent' is now a property of 'slotProps' -->
<h1>{{ slotProps.formatContent(action.name) }}</h1>
<p>{{ slotProps.formatContent(action.description) }}</p>
</template>
If you still need the v-html rendering, you can still do that in the slot:
<template #tooltip-content="{ formatContent }">
<h1 v-html="formatContent(title)" />
<p v-html="formatContent(content)"/>
</template>
my child component is like this
<editor v-model="edit_thread.body"></editor>
and then I access the component from inside like this
<template>
<div>
<input :value="this.value">
</div>
</template>
<script>
export default {
data() {
return {
value: this.edit_thread.body
}
}
}
</script>
not working, I miss something?
To use v-model on custom components, the component needs to:
have a prop (not a data property) named value:
<template>
<div>
<input :value="value">
</div>
</template>
<script>
export default {
props: ['value']
}
</script>
and emit an input event with new values:
<template>
<div>
<input #input="$emit('input', $event.target.value)">
</div>
</template>
demo